Machine for forming nipples



P. A. RAICHE. MACHINE FOR FORMING NIPPLES.

APPLICATION FILED FEB. 21, I921- Patented Aug. 30, 1921.

2 SHEETS-SHEET I- KW IINVENTOR. I ATTORNEY.

P. A. R-MCHE.

MACHINE FOR FOR-MING NIPPLES.

APPLICATION FILED FEB, 21, 1921. 1,389,219. Patented Aug. 30, 1921.

2 SHEETS-SHEET 2.

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. W MH UNITED STATES I PATENT OFFICE.

PAUL RAICHE, OF PROVIDENCE, RHODE ISLAND, ASSIGNOB. T0 DAVOL RUBBER COMPANY, OF PROVIDENCE, RHODE ISLAND.

{MACHINE FOR FORMING NIPPLES.

Specification of Letters Patent.

Patented Aug. 30, 1921.

Application filed February 21, QSe rialNO. 446,809.

new anduseful Improvements in Machines for Forming Nipples, of which the following is a specification.

This invention relates to certain new and useful improvements 1n forming nipples,

and it has for its primary object to provide a machine to roll 'a bead on the openend of a'gum nipple to be subsequently vulcanized. V In one aspect, it consistsin' means for holding a gum'nipple, as it comes from the seaming machine, so as to leave an edge at.

the open end thereof projecting for opera.- tion thereon by a reciprocato-ryformer acting to turn or roll over the edge inwardly to form a roll or head on the open end, sub sequent to which the nippleis vulcanized.

The invention further resides in the features of construction and the arrangements and combinations of parts hereinafter described, reference being had to the accompanying drawings therein.

Figure 1 is a top plan view of the machine embodying the present invention;

Fig. 2 is an end elevation of the former or shaper end of the same;

Fig. 3 discloses the machine in side elevation;

Fig. 1 is a transverse section on line 4-4 of Fig. 1; and

Fig. 5 is an elevation of the rolled nipple.

Referring more in detail to the drawings, the bed 1 is designed for mounting on a work table or bench, and supports a standard 2 which is provided with a bearing 3' for shaft 4, the latter carrying on one end a fixedpulley 5 and on its opposite end a disk 6 equipped with an eccentrically disposed crank pin 7. A plunger 8 is slidable in a bearing 9 of a second standard 10 on the bed, the same being lubricated through duct 11 and connected to'the crank pin by means into the base portion thereof to provide an edge-rolling or turning shoulder 16.

. Aclutch or holder for the nipple to be worked, comprises a'pair' of component sec tions 17 recessed to receive the'nipple'in such manner as to permit the free edge or open end thereof to project from the, clutch or holder,'said sections'being hinged together,

as. at 18, but are normally retainedclosed or y operative by meansof spring 19 which is fixed to the base of one finger piece and bears on the outer end portionof the companion finger piece, said finger pieces 20 being respectively mounted on the hinged ends of the sections 17 whereby upon pressing them together the sections will open. for the re moval and insertion of the nipples. i In operation, the operatoropens the clutch or holder a-nd:places .a gum nipple therein with, the. edge projecting substantially as shown in-Fig. Then, with aslight rotary movement he brings the projecting edge up against the former 15 which as it reciprocates, turns the edge over into a bead substantially as depicted in Fig. 5. Bystarting the nipple on the former at a slight angle and giving it a slight rotary motion, the free endreadily rolls itself into the body of the nipple. Subsequently, the nipples are placed in suitable vulcanizing apparatus for further treatment. The machine is exceedingly simple and operates in an efficient manner to quickly turn the free edge of a gum nipple backwardly, the operator controlling the process by proper manipulation of the holder, or the latter may be mounted on the bed and mechanically moved by suit able means not shown.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is j 1. In a nipple machine, a base, a pair of standards thereon, a drive shaft journaled on one standard andrprovided with a crank part, a plunger slidable in a bearing on the other standard, a pitman connection between the rear end of the plunger and the crank part, and a former mounted on the forward end of the plunger for acting on the open end of a gum nipple.

2. In a nipple machine, a base, standards mounted thereon having bearin s at right angles to each other, a drive sha t journaled in one bearing, a plunger slidable in the other bearing, a connection between the shaft and the plunger for imparting reciprocatory motion to the latter, the forward end of the plunger being formed with a reduced cylindrical nose merging into a rearwardly disposed curved shoulder, and means for presenting a gum nipple to the forward end of the plunger;

3. In a nipple machine, a reciprocatory former designed to act upon the open end of a gum nipple to turn the edge back into the body, and means for presenting a nipple to the former.

LIn' a nipple machine, a reciprocatory former, and means for presenting the open end of a gum nippl'e to the reciprocatory member comprising a Sectional body formed with a nipple-receiving recess, said body being divided lengthwise of the recess, means hingedly connecting the body sections together, and resilient means for holding the body sections closed.

5. In a nipple machine, a reeiprocatory former, and means for receiving and holding a gum nipple thereto withrthe open end of the nipple projecting from said means for being acted upon by the former.

6. In a nipple machine, a base, a pair of standards thereon, -a drive shaft journaled on one tandard and provided with a crank part, a plunger reciprocatory in'a bearing on the other standard, a pitman connecting end 'of the plunger being formed with a reduced cylindrical nose merging into a rearwardly disposed curved shoulder, and means for presenting the open end of a gum nipple to the reciprocatory member comprising a sectional, body formed with a nipple-receiving recess, said body being divided lengthwise of the recess, means hingedly connecting the body sections together, and resilient means for holding the body sections closed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses;

PAUL A. 'RAICHE.

Witnesses M.A. KINGSLEY, J. MILLER. 

